Research on aluminum alloy negative electrode meterials for high power Al/AgO batteries
WANG Peiqiao
LYU Linna
LIN Pei
LI Xuehai
SONG Yi
LIU Ying
ZHANG Lijun
Abstract：This study prepared three novel aluminum alloy anode materials,Al-Mg-Ga-Hg-Sn,with different Hg contents(mass fractions of 0.03%,0.04%,0.05%)using the melting-casting method.The electrochemical properties and hydrogen evolution corrosion rate in alkaline solution were investigated.The results indicate that adding an appropriate amount of Hg to the aluminum alloy is beneficial for enhancing its performance under high-power discharge conditions.Appropriately increasing the content of Hg to 0.04%can effectively reduce the corrosion rate of hydrogen evolution and improve the corrosion resistance of aluminum alloy.At the same time,the electrode potential of aluminum alloy has obvious negative shift,which can effectively inhibit the generation of passivation film.Discharge performance tests on assembled aluminum-silver oxide single cells demonstrated that the aluminum alloy with the composition Al-0.3Mg-0.02Ga-0.04Hg-0.05Sn exhibits excellent performance,with an average voltage of 1.666 V up to a cutoff voltage of 1.48 V.This alloy shows promising potential for application in next-generation high-specific-energy Al/AgO batteries.
Keywords：aluminum alloyelectrochemical propertiesthe self-corrosion rateHg contents
Publication Date：2025-08-25
Online Publishing Date：2025-09-22(First online date of this platform, not the publication date of the document)
Pages：5( 237-240,252 )